From a Roman Cemetery to the Official Burial Place of the Church
By the end of the second century the Christian community in Rome had grown large enough to need its own burial places along the consular roads outside the Aurelian Walls. The complex that later took the name of Pope Callixtus I began as a small cemetery on the Via Appia and was extended by him while he served as deacon of Pope Zephyrinus and superintendent of the Christian cemeteries of Rome. After his pontificate from 217 to 222 the cemetery grew under successive bishops into a vast underground system on multiple levels, and in the middle of the third century it became the official burial place of the popes. Most of the third-century bishops of Rome were laid to rest here, and several of them, including Pope Saint Sixtus II, were martyred during the persecutions of Decius and Valerian. Saint Cecilia, traditionally venerated as a young Roman martyr of the same era, was buried in the chamber next to the Crypt of the Popes. The catacombs continued in use through the early fourth century, after which Christian burial returned increasingly to surface cemeteries beside the new basilicas. The relics of most of the popes buried here were translated to other Roman churches across the early medieval centuries, and the relics of Saint Cecilia were translated by Pope Paschal I in the early ninth century to the basilica of Santa Cecilia in Trastevere. The galleries were eventually forgotten and then rediscovered in the nineteenth century, above all through the patient work of the archaeologist Giovanni Battista de Rossi, who recovered the Crypt of the Popes and identified the original inscriptions. The complex has been entrusted to the Salesians of Don Bosco since the early twentieth century and is administered by the Pontifical Commission for Sacred Archaeology.
The catacombs are cut directly into the volcanic tuff of the Via Appia and extend across several levels of narrow galleries lined with loculi, family cubicula, and arcosolia. The Crypt of the Popes is a small rectangular chamber with the inscriptions of the third-century popes set into its walls and a marble plaque commissioned by Pope Damasus in the late fourth century. The Crypt of Saint Cecilia opens directly off it, preserving traces of early fresco decoration. The Cubicula of the Sacraments are a sequence of small chambers whose third-century paintings include some of the earliest visual representations of Christian baptism and the Eucharist. Above ground, the small basilica of the popes Sixtus and Cecilia and the Salesian welcome buildings frame the entry to the visit.
The catacombs are not a museum and they are not a curiosity. They are a Catholic burial place where the popes and martyrs of the early Church of Rome were laid in the ground and where the faithful prayed beside their tombs. The Pontifical Commission for Sacred Archaeology asks visitors to read them in that key. A serious pilgrim visit pays close attention to the popes who governed and suffered for the Church of Rome in the third century, to the witness of Saint Cecilia, and to the way the earliest Christian art in Rome already speaks in the language of the sacraments.